San Francisco · Mission St
300 Mission St, San Francisco
21 home-service permits on record at 300 Mission St, San Francisco; the roof was last permitted on Aug 4, 2021 at a declared value of $90,000.
Home-service permits on record at this address
| Issued | Work | Trade | Declared value | Contractor as filed | Status | Permit |
|---|---|---|---|---|---|---|
| Sep 24, 2026 | otc alterations permit: 14/f: revision to pa#202607225388. provide & install new lighting fixtures & controls per title 24 requirements. provide & install new devices shown on plan. lighting t-24 calculation. provide all electrical requirements. ref pa #202605201633 | Electrical | $150,000 | — | issued | 202609168175 |
| Aug 14, 2026 | otc alterations permit: 14th floor: electrical for pa #202605201633 project | Electrical | $573,000 | — | issued | 202607225388 |
| Jul 20, 2026 | otc alterations permit: 14/f: mechanical for pa# 202605201633 provide new mains and lowside ductwork per new architectural layout. provide new transfer for serving server room. provide new water source heat pump serving board room | Heating and cooling | $513,000 | — | issued | 202607134900 |
| Jun 10, 2026 | otc alterations permit: 14 fl: interior tenant improvement which includes multi-use men and women restrooms, new partitions, finishes, light fixtures, ceiling,assembly, millwork and plumbing fixtures. mep deferred | Plumbing | $3,426,600 | — | issued | 202605201633 |
| Mar 26, 2026 | otc alterations permit: 11/f: deferred electrical permit for ti bpa 202512171972. new power and signal devices througthout space. new 2022 t24 compliant lighting and control | Electrical | $45,250 | — | issued | 202603268323 |
| May 1, 2025 | otc alterations permit: 15/f: interior ti including multi-use men and women restrooms, new partitions, finsihes, light fixutres, ceiling assemblies, millwork, and plumbing fixtures. mep and fire life safety under separate permit | Plumbing | $2,199,000 | — | Finaled Oct 2, 2025 | 202504285307 |
| Dec 13, 2024 | otc alterations permit: 20th fl- deferred mechanical & electrical ref pa # 2024-0813-8510 & 2024-1015-2929. mechanical: demo & install low side by ductwork per revised owner layout. electrical: new power & signal devices. new lighting & controls | Electrical | $65,000 | — | Finaled Jan 24, 2025 | 202412056234 |
| Mar 12, 2024 | otc alterations permit: ref t.i. 202402055218. mech reroute duct, add van & ductwork, add new transfer air. power, lighting & signal, plumbing for breakroom applicances | Heating and cooling | $5,000 | — | Finaled Jul 2, 2024 | 202403077322 |
| Sep 14, 2023 | otc alterations permit: suite 1500: deferred electrical permit-under main archtectural permit 202306281088. no exterior work. new lighting to "white box" space | Electrical | $83,735 | — | Finaled Nov 22, 2023 | 202309146614 |
| Aug 17, 2023 | otc alterations permit: fire alarm 1 duct detector, 1 relay module, 5 ceiling strobes, 8 ceiling speaker strobe | Heating and cooling | $10,790 | — | Finaled Jul 23, 2024 | 202308164567 |
| Aug 3, 2023 | otc alterations permit: suite 1500: ab017: removal of non-structural paritions, light fixtures millwork, plumbing, fixtures and finishes, new light fixtures throughout ab-017 exception to requirements for disabled access to vacant spaces suite to remain unoccupied | Plumbing | $410,000 | — | Finaled Nov 22, 2023 | 202306281088 |
| Aug 4, 2021 | otc alterations permit: for 18th fl scope includes construction of roof space, collab space and breakroom. interior only e service core elements including stairs, elevators, mep shafts to remain as is | Roofing | $90,000 | — | issued | 202107154433 |
| Nov 6, 2020 | otc alterations permit: 23rd fl - revision to pa 2019-1114-7260, modifications to fecs, door hardware, plumbing fixtures, layout of door near the core central stair, and revise scope at the core restrooms. all affected areas were previously reviewed as part of the original permit. no new scope added | Plumbing | $25,000 | — | Finaled Apr 14, 2021 | 202007240759 |
| Nov 6, 2020 | otc alterations permit: 21st fl - revision to pa 2019-1121-7840, modifications to fecs, door hardware, plumbing fixtures, layout of door near the core central stair, and revise scope at the core restrooms. all affected areas were previously reviewed as part of the original permit. no new scope added | Plumbing | $20,000 | — | Finaled Apr 16, 2021 | 202007240757 |
| Oct 9, 2020 | otc alterations permit: 22nd fl - revision to pa 2019-1121-7838, modifications to fecs, door hardware, plumbing fixtures, layout of door near the core central stair, and revise scope at the core restrooms. all affected areas were previously reviewed as part of the original permit. no new scope added | Plumbing | $1 | — | Finaled Apr 16, 2021 | 202007240758 |
| Oct 9, 2020 | otc alterations permit: 20th fl - revision to pa 2019-1121-7836, modifications to fecs, door hardware, plumbing fixtures, layout of door near the core central stair, and revise scope at the core restrooms. all affected areas were previously reviewed as part of the original permit. no new scope added | Plumbing | $1 | — | Finaled Apr 16, 2021 | 202007240756 |
| Mar 11, 2020 | otc alterations permit: 20th fl - add 111, relocate 62 and change out 89 sprinklers in order to conform with the new wall/ceiling layout of the ti ref pa 2019-0924-2474 | Heating and cooling | $73,800 | — | Finaled Nov 19, 2020 | 202003106692 |
| Mar 11, 2020 | otc alterations permit: 21st fl - add 89, relocates 53, plug 26 and change out 141 sprinklers in order to conform with the new wall/ceiling layout of ti ref pa 2019-0924-2474 | Heating and cooling | $59,800 | — | Finaled Nov 19, 2020 | 202003106685 |
| Feb 11, 2020 | otc alterations permit: demo of interior non bearing wall partitions, doors, lighting fixtures, floor finishes, plumbing fixtures on levels 16-19. no change in use or exterior scope. fire ls and proposed ti buildout under sep permit ab-017 | Plumbing | $750,000 | — | issued | 202002104008 |
| Feb 10, 2020 | otc alterations permit: fire sprinklers on 23rd fl: add 166, relocate 143, plug 43 and change out 28 sprinklers per ti. reference pa# 2019-1114-7260 job#: 19-708 | Heating and cooling | $125,625 | — | Finaled Apr 29, 2021 | 201912109151 |
| Feb 10, 2020 | otc alterations permit: fire sprinklers on 22nd fl: add 145, relocate 107, plug 35 and change out 53 sprinklers per ti. reference pa# 2019-1121-7838 job#: 19-708 | Heating and cooling | $112,125 | — | Finaled Jan 20, 2021 | 201912109149 |
On Mission St
1,222 permits on record on Mission St.
| Trade | Permits | Since Oct 4, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 291 | 52 | $19,800 | $5,000–$47,200 | Sep 30, 2026 |
| Heating and cooling | 413 | 34 | $59,458 | $1,045–$1,040,000 | Sep 16, 2026 |
| Electrical | 324 | 48 | $45,125 | $1–$271,641 | Sep 24, 2026 |
| Plumbing | 166 | 27 | $176,752 | $12,300–$2,079,600 | Sep 2, 2026 |
| Water heater | 16 | 6 | $36,500 | $5,000–$471,400 | Mar 2, 2026 |
| Solar | 12 | 1 | — | under 5 | Jan 15, 2025 |
Roof replacement cost in San Francisco
Across 5,889 one- and two-family reroof permits since October 4, 2024, most declared values run from $7,650 to $32,000 (the middle 80%); the median is $15,000 and half fall between $10,800 and $21,760. The lowest on record is $1 and the highest $4,315,170. Every permit behind that range.
Furnace, heat pump or air conditioner replacement cost in San Francisco
Across 291 one- and two-family heating and cooling permits since October 4, 2024, most declared values run from $1 to $224,616 (the middle 80%); the median is $25,196 and half fall between $5,000 and $116,433. The lowest on record is $1 and the highest $1,600,000. Every permit behind that range.
Source
San Francisco Department of Building Inspection, via DataSF, pulled nightly; the assessor roll for the property fields. As of October 4, 2026. Owner names are not shown on any page.